Hinge device of a steam oven door

ABSTRACT

A hinge device of a steam oven door comprises a mount provided with a slide slot thereon, which is installed on an inner lateral wall of an oven case. A roller wheel is slidably mounted in the slide slot. One side of the mount is pivotally installed with a rotary beam provided with a spring; the free end of the spring is fixed on the lateral wall of the oven case. The opposite side of the mount is provided with a push beam with one end pivotally connected to the roller wheel and the rotary beam. The rotary beam is pivotally connected to a link beam with second end pivotally connected to a curved element, whose one end is in turn pivotally connected to the mount. The other end of the curved element is pivotally connected to a transmission beam.

FIELD OF THE INVENTION

The present invention relates to steam oven doors, and more particularlyto a hinge device of a steam oven door capable of capable of preventinginterference between the oven door and the water tray, wherein the ovendoor of the present invention will not interfere with the water tray.The oven door and the outer lateral wall of the water tray can be on thesame plane, making the outlook of the present invention more visuallyappealing.

BACKGROUND OF THE INVENTION

Referring to FIG. 1, a steam oven of the prior art has a boxy case 10having a bottom water tray 11. To open the boxy case 10, the oven door12 is rotated downward about the pivotal side along the bottom thereof,so that the food inside the boxy case 10 can be taken out. However, theoven door 12 being rotated will inevitably interfere with the water tray11; therefore, the outer edge of the water tray 11 is located under theboxy case 10 with a distance from the pivotal side of the oven door 12.This configuration is inconvenient to people who want to reach the watertray 11. Further, since the interface between the water tray 11 and theoven door 12 is recessed, the outlook of the steam oven will benegatively influenced.

SUMMARY OF THE INVENTION

Accordingly, the primary objective of the present invention is toprovide a hinge device of a steam oven door capable of preventinginterference between the oven door and the water tray.

A hinge device of a steam oven door comprises a mount provided with aslide slot thereon, which is installed on an inner lateral wall of anoven case. A roller wheel is slidably mounted in the slide slot. Oneside of the mount is pivotally installed with a rotary beam providedwith a spring; the free end of the spring is fixed on the lateral wallof the oven case. The opposite side of the mount is provided with a pushbeam with one end pivotally connected to the roller wheel and the rotarybeam. The rotary beam is pivotally connected to a link beam with secondend pivotally connected to a curved element, whose one end is in turnpivotally connected to the mount. The other end of the curved element ispivotally connected to a transmission beam. One end of the push beam ispivotally connected to the transmission beam, and the other end isconnected to the inner wall of the oven door. Thereby, the oven door ismounted on the front side of the steam oven.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of a steam oven of the prior art.

FIG. 2 is a perspective view of a hinge device of a steam oven door ofthe present invention, wherein the oven door is open.

FIG. 3 is an exploded perspective view of a hinge device of a steam ovendoor in FIG. 2.

FIG. 4 is a perspective view of a hinge device of a steam oven door inFIG. 2.

FIG. 5 is a side view of the present invention attached to a closedsteam oven door.

FIG. 6 is a side view of the present invention attached to a partiallyopen steam oven door.

FIG. 7 is a side view of the present invention attached to a fully opensteam oven door.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The various objects and advantages of the present invention will be morereadily understood from the following detailed description when read inconjunction with the appended drawings.

Referring to FIGS. 2, 3, and 4, a hinge device of a steam oven dooraccordingly to the present invention comprises a mount 20, a rotary beam3, a push beam 4, a link beam 5, a curved element 6, a transmission beam7 and an oven door 8. The mount 20 is provided with a slide slot 21 inwhich a roller wheel 24 is slidably mounted. The mount 20 is furtherprovided with a pair of through holes 22, 23. The rotary beam 3 ispivotally connected to the roller wheel 24 on a first side of the mount20 by inserting a pivot piece 30 through a through hole 31 on the rotarybeam 3 and the through hole 22. The rotary beam 3, having three throughholes 31, 32, 33 and an upper ear part 34, is linked to a first end of aspring 35 hooked at the ear part 34. A second end of the spring 35 isfixed on a lateral inner wall of the oven case 2. The push beam 4,having a pair of through holes 40, 41, is pivotally attached on a secondside of the mount 20 by inserting a pivot piece 36 through the throughhole 33, the roller wheel 24 and the through hole 40. A first end of thepush beam 4 is pivotally connected to the roller wheel 24 and the rotarybeam 3. The link beam 5 has a first end pivotally connected to thebottom end of the rotary beam 3 by inserting a pivot piece 50 through athrough hole 51 and the through hole 33. The curved element 6 has afirst end pivotally connected to a second end of the link beam 5 byinserting a pivot piece 60 through a through hole 61 and the throughhole 23, so that the curved element 6 is attached to the mount 20. Thetransmission beam 7 is pivotally connected to a second end of the curvedelement 6 by inserting a pivot piece 63 through a through hole 70 andanother through hole 64. The transmission beam 7 is further pivotallyconnected to a second end of the push beam 4 by inserting a pivot piece71 through a through hole 72 and the through hole 41. The oven door 8 towhich a main section of the transmission beam 7 is attached.

To use a steam oven door equipped with the present invention, as shownin FIGS. 5 and 6, when the oven door 8 is being opened, the transmissionbeam 7 attached on the inner wall of the oven door 8 will drive thecurved element 6 to rotate about the pivot piece 60, and the push beam 4is pulled by the transmission beam 7, thereby driving one end of therotary bean 3 and the roller wheel 24 to slide along the slide slot 21.Accordingly, the rotary beam 3 will urge the link beam 5 to stretch thespring 35, and the other end of the link beam 5 will be driven by thecurved element 6. When the oven door 8 is opened slightly, it will besupported by the push beam 4 and the curved element 6 to be liftedupward, as shown in FIG. 6, whereby the bottom side of the oven door 8will not collided with the water tray 25 disposed on the bottom of theoven case 2. As the oven door 8 is further opened and extended outward,the transmission beam 7 will continue to drive the curved element 6 andthe push beam 4, whereby the rotary beam 3, the curved element 6 and thepush beam 4 will move in accordance with the curve defined by the slideslot 21. Therefore, the outward flip of the oven door 8 will also followthe curve defined by the slide slot 21 and will not interfere with thewater tray 25. The bottom side of the oven door 8 and the outer side ofthe water tray 25 can be designed to be close together, achieving abetter outlook of the steam oven.

According to the above description, the present invention has theadvantages as follows.

1. The oven door of the present invention will not interfere with thewater tray.

2. The oven door and the outer lateral wall of the water tray can be onthe same plane, making the outlook of the present invention morevisually appealing.

The present invention is thus described, and it will be obvious that thesame may be varied in many ways. Such variations are not to be regardedas a departure from the spirit and scope of the present invention, andall such modifications as would be obvious to one skilled in the art areintended to be included within the scope of the following claims.

1. A hinge device of a steam oven door, comprising: a mount providedwith a slide slot, said slide slot being slidably mounted with a rollerwheel; a rotary beam pivotally connected to said roller wheel on a firstside of said mount, said rotary beam being linked to a first end of aspring, a second end of said spring being fixed on a lateral inner wallof said steam oven; a push beam pivotally attached on a second side ofsaid mount, a first end of said push beam being pivotally connected tosaid roller wheel and said rotary beam; a link beam having a first endpivotally connected to a bottom end of said rotary beam; a curvedelement having a first end pivotally connected to a second end of saidlink beam that in turn attached to said mount; a transmission beamhaving a bottom end pivotally connected to a second end of said curvedelement and the second end of said push beam; and an oven door to whicha main section of said transmission beam is attached.
 2. The hingedevice of a steam oven door of claim 1 wherein said slide slot on saidmount is of arced shape.